-209715
domain: Z
Appears in sequences
- a(n) = (1 - (-4)^n)/5.at n=9A014985
- Gaussian binomial coefficient [ n,9 ] for q=-4.at n=1A015376
- Expansion of 1/(1-x+2*x^3).at n=36A077950
- Expansion of 1/(1-x+2*x^3).at n=38A077950
- Expansion of 1/(1+x-2*x^3).at n=36A077973
- Expansion of 1/(1+x-2*x^3).at n=38A077973
- Expansion of 1/(1+x-2*x^3).at n=39A077973
- Row sums of triangle A118407.at n=39A118408